Living On Earth's Cynthia Graber reports on windows that become darker with the flick of a switch, helping reduce heat and glare from the sun.
CURWOOD: Just ahead, putting a damper on fire ants. Stay tuned to Living on Earth. First this environmental technology note with Cynthia Graber.
GRABER: Windows make a big difference in how much heating, cooling, and light a building needs. Today's best windows can reduce heat and glare from ultraviolet rays. But about half the heat streaming through them comes from visible light. So researchers have teamed up with the U.S. Department of Energy to produce the first electrically-powered tinting windows. These windows are coated with five layers of a thin metal mixture. With the twist of a dimmer, a user can send an electric charge through some of the coatings. Some layers absorb the charge and become darker, then lighter once again when the charge is released. Researchers say the new panels can save up to 40 percent of electricity needs even over today's best energy-saving windows. And because they cut down on both ultraviolet and visible sunlight, your couches, chairs, and carpets won't fade so quickly, either. That's this week's technology update. I'm Cynthia Graber.
CURWOOD: And you 're listening to Living on Earth.
(Music up and under: Medeski, Martin & Wood "Dracula")
Living on Earth wants to hear from you!
P.O. Box 990007
Boston, MA, USA 02199
Donate to Living on Earth!
Living on Earth is an independent media program and relies entirely on contributions from listeners and institutions supporting public service. Please donate now to preserve an independent environmental voice.
Sailors For The Sea: Be the change you want to sea.
Innovating to make the world a better, more sustainable place to live. Listen to the race to 9 billion
The Grantham Foundation for the Protection of the Environment: Committed to protecting and improving the health of the global environment.
Energy Foundation: Serving the public interest by helping to build a strong, clean energy economy.
Contribute to Living on Earth and receive, as our gift to you, an archival print of one of Mark Seth Lender's extraordinary wildlife photographs. Follow the link to see Mark's current collection of photographs.
Buy a signed copy of Mark Seth Lender's book Smeagull the Seagull & support Living on Earth